#include <iostream>
#include <complex>

using namespace std;

class Base
{
public:
	Base(){}
	~Base(){}
};

class Derived : public Base
{
public :
	Derived(){}
	~Derived(){}
};

struct A
{
	char c;
	double d;
	//int s;
	//short s[2];
	char a;
};

int main()
{
	cout<<sizeof(Base)<<endl;
	cout<<sizeof(Derived)<<endl;
	cout<<sizeof(A)<<endl;
}
